Fan construction.



L. M. DKETERICH.

FAN CONSTRUCTION.

APPLIEATIDN FILED NOV. 9. ms.

1,244,480.. Patented 0ct.30,1917. v

2 SHEETSSHEET I.

4 omvey L. M. DiETERICH.

. FAN CONSTRUCTION.

APPLICATIUN FILED NOV. 9- 915- 1.244A80. Patented Oct. 30,1917.

2 SHEETs-SHEET Z.

3 Wa/V/a z w WM.

WITNESSES:

mvzuron 2 BY LM. tylms L'UDWIG M. DIETERICH, OF MO'UNT VERNON, "NEW YORK, ASSIGNOB TO SAFETY GAB "HEATING &' LIGHTING COMPANY, A COBPDBATION OF NEW JERSEY.

ran consrauo'rron.

1 244 480 I Specification of Letters latent. Pgatentgd st, 30, 11917.

Application filed November 9, 1915. Serial No. 60,508.

To all whom it may concern: Bolted to the fitting 6 is a frame com- Be it known that I, Lunwro M. Dmrnmcn, prising a plurality of curved arms 10 rigidly a citizen of the United States, and a resi- I held in spaced relation as by the rings 11 dent of Mount Vernon, in the count of and 12. 5 Westchester and State of New York, ave Shaft 8 is carried downwardly and proon invented an Improvement in Fan Gonstrucvided .with a suitably locked nut 13 upon tion, of which the following is a specificawhich rests, as by the ball-bearing 14 tion, Y J a deflector 15. It may here be noted This invention relates to fan construction. that the term deflector is used throu hin ()ne of the objects thereof is to provide out in a broad sense to denote any e eas apparatus oi the above nature, of simple, ment adapted upon being exposed to an inexpensive and practical construction, with air blast to tend to discharge it in a desired the parts compactly disposed. Another obdirection. ject is to provide apparatus of the above The construction of deflector 15 is best 15 type which shall be quiet, reliable and efliseen from Fig. 2 of the drawings, and it 7r cient in action. will be noted that it comprises, in general, Other objects be in part obvious and a series of plates extending downwardly, in part pointed out hereinafter. one-half of these plates being outwardlyy The inventionaccordingly consists in the curved in one direction and the other half no features of construction, combihations of similarly curved in the opposite direction. 7% elements, and arrangement of parts, which -1hese plates, which form a 'd, are held will be exemplified in the structure hereinin position by the rim 16 ang hy a central after described and the scope ofthe appli hub 1'5, suitably journaled upon the shaft 8. r cation of which will be indicated in the iol- It will thus be seen that this deflector, as lowing claims. which is freely rotatableupon the shaft 8, so

In the accompanying drawings, in which is mounted in the path of discharge of the are shown one or more of various possible fan 9 and it may here be noted that the embodimentsof the several features of this term fan is used in abroad sense to deinvention, Figure 1 is a sectional elevation. note any device adapted-to discharge an air so Fig. 2 is a sectional plan taken substantially blast, whether of the propeller-bladed type 85 on the line A-A of Fig. 1. Fig. 3 is a or otherwise. detailed sectional view. 'Fixed to the shaft 8 above the deflector Similar reference characters refer to simi- 15 is a fiber pulley 18 having a V-shaped lar parts throughout the several views of groove in which is mounted a resilient belt 1; the drawings; 19 which connects pulley 18 with a similar at I Referrin ,now, to Fig. 1 of the drawings, pulley20. Belt 19 may be of rubber or of there is in icated at'l a portion of a car coiled spring and it tends in its action to draw roof, it being understood that this apparatus the pulley 20 toward the shaft 8. The latis pheculiarly adapted for use in connection. ter pulley is ireely mounted upon a pin 21 wit railway cars. Mounted within and expivoted at 2212c a fixed bracket 23 u on the at tending through this roof is a sleeve 2, the ring 12- Pulley 20, the downwar -moveca 3 of which is provided with an adjustment of which is limited by a stopcollar 24 ab'e shutter 4: controlled through suitable upon the spindle 21, is provided with: a linkage by means of a rod' fi'de ending withroller surface 25 engaging the outer surface as in the car; Mounted within s'eeve 2 n any of the ring 16 and resiliently held against 11 suitable manner, as by means of the fitting thensamc by the belt 19. I 6, is an electric motor '7, the details of the In the action of the apparatus, the pulley construction of which form in themselves 18, fast u on the shaft 8, causes a rapid no part of the present invention. The downrotationo the pulley 20, and the latter by ac wardly extending shaft 8 of motor 7 is promeans of, the roller surface 2.5 rotates the it; ided with a rotary fan 9, the blades of deflector about its axis, the. various parts which are so forme as to discharge the air being so proportioned 'aeftogive the desired f'down'wardly when the motor is in action, slow rate of rotation,of; ,thefdefiector'rrith this air being largely drawn through the the fan running at its normal s "eed. The

5a shutter 4 and about themotor yielding connection between the an shaft 6 and the deflector permits the motor to be started without being exposed to the full load as slippage is permitted at the frictional engagement of the roller with the rim 16 and the deflector may thus be gradually brought up to sgeed. The free mount,

ing of the roller 25'w1th the parts connected therewith permits it to assume a position precisely in alinement with roller 18 and thus does away with any tendency of the as t e deflector revolves. The entire apparatus, moreover, being fiee from gears is substantially silent in action and the do ector is rotated at such proper speed as will swmg the downwardly and outwardly di rected air blasts at the desired rate about sprlu the axis of shaft 8. V

In Fig. 3 or the drawings is shown a slightly difi'erent mounting of the pulley driving the deflector, the d pulley 26 being here .mounted upon a spindle 27 rovided with the pivot pin 28 resting 111 a slot 29 in the bracket 30: The roller surface 31 engages the outer surface of the rim 16, as hereinbefore described, and is resiliently urged against such surface by a tension 32 connected between the frame at 33 an a cap as on the end of the spindle 27. Downward movement of the pulley 26 is limited as by means of a stop collar 35 on the lower end of the spindle.

The action of the apparatus last described will be clear from itsconstruction taken in connection with the description of operation of the apparatus first set forth.

It will thus be seen that there is apparatus in which the several 0 this invention are achieved.

As many changes might be made in the above construction, and as many apparently 'difl'erent embodiments might be made of this invention without departing from-the scope thereof, it is intended that all features herein described or shown in the accompanying drawingsshall be interpreted as illustrative and not ina limiting sense.

Having thus revealed this invention 1 claim as new and desire to secure the fol lowing combinations of elements, or equiva lents thereof, by Letters Patent of the United States 1. in construction or" the class described, in combination, a fan, a rotary deflector in JGCtS of the path of discharge of said fan, a source or power driving said fan, and a device.

driven from said source of power engaging the outer portion of said deflector and adapted to rotate the same at a slow speed relative to that of said fan.

2. in construction or the class described,

grovided naaaeao in combination, a fan, ajrotary deflector in the path of discharge of said fan, a source of power driving said fan, a roller driven from said source of power and resting against the outer portion of said deflector, and means resiliently urging said roller against said deflectorto rotate the same.

3. In construction of the class described, in combination, a fan, a rotary deflector in the path of discharge of said fan, a source of power, and a rotary driving member driven from said source of power and resiliently urged into frictional relation with'said deflector to rotate the same.

d. In construction of the class described, in combination, a motor having a downwardly extending shaft, a fan uponsaid shaft, a rotary deflector mountedbelow said fan and coaxial with said shaft, a rotary driving member resiliently urged against said deflector to rotate the same, and means driving said member from said motor.

5. In construction of the class described, in combination, a fan, arota deflector in the path or discharge of said an, a pivoted member mounted adjacent the outsideof said deflector, a roller mounted on said pivoted member, and means. adapted to rotate said roller and press the same against the outer portion of said deflector.

6. In construction oi the class described, in combination, a fan, a rotarydeflector in the path of discharge of said fan, a pivoted member mounted adjacent the outside of said deflector, a roller mounted on said pivoted member, and means adapted to rotate said roller and press the same against the outer portion ofsaid deflector, said deflector being positioned beneath said fan and coaxial therewith.

7. In construction of the class described, in combination, a fan, a source of power driving said fan, a movable deflector in the path of discharge of said fan, and means.

comprising a yielding connection adapted to actuate said deflector from said source of power in a plane narallel to, the plane of rotation of said fan.

8. in construction of the-class described,

in combination, a fan, a source of power driving said fan, a movable deflector in the path of discharge of said fan, and means comprising a yielding connection adapted to actuate said deflector from said source oi power, said deflector being positioned beneath said fan and said fan being positioned beneath said source of ower.

9. In construction 0 the class described,

in combination, a motor having a downwardly extending shaft, a fan mounted upon said shaft, a rotary deflector mounted below said fan and coaxial with said shaft, said deflector being freely rotatable with respect to said fan, pulley upon the shaft or said mom tor, a pulley mounted adjacent the outer por- 13g 1,,aso

tion of said deflector, a flexible power transmitting device connecting said pulleys, and aroller driven from said last pulley and frictionally engaging the outer surface of said deflector to rotate the same.

10. In construction of the class described, in combination, a motor having a downwardly extending shaft, a fan mounted upon said shaft, a rotary deflector mounted below said fan and coaxial with said shaft, said deflector being freely rotatable with respect to said fan, a pulley upon the shaft said motor, a pulley mounted adjacent the outer portion of said deflector, a roller fric-v tionally engaging the outer surface of said deflector to rotate the same, and means adapted to drive said second pulley from said first pulley and to urge said roller yieldingly against said deflector.

11. In construction of the class described, in combination, a motor having a downwardly extending shaft, a fan mounted u on said shaft, arotary deflector mounted be? said fan and coaxial with said shaft, said deflector being freely rotatable with respect to said fan, a pulley upon the shaft of said motor, a pulley mounted adjacent the outer portion of said deflector, a. pivotally mounted pin on which said second pulley is journaledi a roller driven from said second pulley an frictionally engaging the outer surface of said deflector, and means driving said second pulley from said first pulley and yieldingly urgin said. roller against said deflector.

12. 11 construction of the class described, in combination, a motor having a downwardly extending shaft a fan mounted upon said shaft, a rotary deflector mounted below said fan and coaxial with said shaft, said deflector being freely rotatable with respect to said fan, a pulley upon the shaft of said motor, a pulley mounted adjacent the outer port1on of said deflector, a roller frictionally engaging the outer surface of said deflector to rotate the same, and means' said second pulley from said first pulley and urgesaid roller yieldingly against said deflector, said deflector being supported by and havinga hearing on an extension of the motor shaft.

In testimony whereof, I have signed my name to this specification this 1st day of November 1915.

- LUDWIG M. DIETERICl-l.

adapted to drive 

